1. Abductor pollicis brevis abductor pollicis longus abductors Abegg's rule abembryonic aberrans aberrant aberration aberrational aberrometer aberrometry A-beta abetalipoproteinemia abeyance ABFP abfraction ABG ABI abience abient abies Abilify abiogenesis abiogenic abiogenically abiological Abiologically abiotic abiotically abiotrophic